zztool What is Torque?
Torque is the rotational force that causes an object to rotate around an axis, equal to force multiplied by the lever arm length. In automotive engineering, torque represents the rotational power output of an engine; in mechanical maintenance, correct torque settings are crucial for bolt fastening. The SI unit of torque is Newton-meter (N·m).
Common Conversions
Use Cases
Wheel lugs, engine parts torque specs
Equipment assembly, bolt specifications
Carbon fiber parts torque control
Production line torque QC
Home tool torque reference
Moment analysis and design
FAQ
What is the difference between torque and power?
Torque is the magnitude of rotational force, power is the rate of doing work. Power = Torque × RPM. Cars need high torque for climbing at low speeds, and high power for high-speed driving.
Why do car manuals use different torque units?
Different countries use different unit systems. Europe and Asia commonly use N·m, the US uses lbf·ft, and Japan sometimes uses kgf·m.
Why is a torque wrench important?
Over-tightening can cause bolt breakage or part deformation, under-tightening can cause loosening. Correct torque ensures safe and reliable connections.
How to choose the correct torque value?
Refer to equipment manuals or bolt specification charts. Torque values depend on bolt material, size, lubrication conditions, etc.
Perfect for mechanics!
Accurate torque conversion.
Very useful tool.